The High Performance StandardConsisting of eight individual TCSS conductors, four blue and four black that utilize our proven braiding technique. The insulating dielectric is high pressure-low temperature-extruded Teflon?. The individual conductors are Hyper-pure copper, arranged in proven VariStrand™ conductor geometry. The aggregate wire size is two 13 awg conductors. The focus, transparency, and transient speed of 4TC are stunning. 4TC continues to receive enthusiastic reviews and recommendations from consumers and critics worldwide.